7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cumberland | 1 | 18,546 | 19,029 | -0.52% | 1,844 | 10 | City |
| Frostburg | 2 | 6,963 | 7,007 | -0.13% | 2,082 | 3 | City |
| Westernport | 3 | 1,760 | 1,804 | -0.51% | 2,002 | 1 | Town |
| Lonaconing | 4 | 983 | 1,000 | -0.41% | 2,715 | 0 | Town |
| Midland | 5 | 473 | 486 | -0.63% | 2,994 | 0 | Town |
| Barton | 6 | 455 | 465 | -0.44% | 2,198 | 0 | Town |
| Luke | 7 | 83 | 86 | -1.19% | 312 | 0 | Town |
Cumberland is the largest city in Allegany County, with a population of 18,546.
Luke is the smallest city in Allegany County, with a population of 83.
There are 7 cities in Allegany County, Maryland.